Docs: Improve ConvexHull description.

docs/examples/math/convexhull/ConvexHull.html

@@ -11,7 +11,7 @@
 		<h1>[name]</h1>
 
 		<p class="desc">
-			Can be used to compute the convex hulls. Implementation of the Quickhull algorithm: Dirk Gregorius. March 2014, Game Developers Conference: [link:http://media.steampowered.com/apps/valve/2014/DirkGregorius_ImplementingQuickHull.pdf Implementing QuickHull].
+			A convex hull class. Implements the Quickhull algorithm by: Dirk Gregorius. March 2014, Game Developers Conference: [link:http://media.steampowered.com/apps/valve/2014/DirkGregorius_ImplementingQuickHull.pdf Implementing QuickHull].
 		</p>